It is a classic mechanical typewriter, produced by the famous German typewriter manufacturer HeinrichErnemann. Known for its rugged and precise mechanical design, it was ideal for mid-20th century office and home use. Using the classic "QWERTY" keyboard layout, the character keys are divided into three lines, in addition to the basic character keys, but also equipped with space, carriage return, line feed and move up and other function keys. The design pays attention to the user experience, and the typing method is hard typing, that is, letters or characters directly hit the roller, which belongs to the mechanical typing method. The metal body and fine craftsmanship made it very popular at the time.

It is known for its classic mechanical design and function. It has a solid metal construction and a classic keyboard layout. The design focuses on durability and reliability, and can withstand long-term use. With its elegant appearance and practical functions, it became a common equipment in offices and homes at that time. In addition, the 1930 s also saw the initial development of electric typewriters, although they were not widely available at the time. These typewriters were not only important office tools at the time, but also laid the foundation for later computer keyboard design.